package com.bang.study.day07;

/**
 * @Auther: Bang
 * @Date: 2019/9/18 0018 17:32
 * @Description:
 */
public interface Map<K, V> {

    void add(K key, V value);

    boolean contains(K key);

    V get(K key);

    void set(K key, V newValue);

    V remove(K key);

    int getSize();

    boolean isEmpty();
}
